Search a number
-
+
13805068 = 2210931663
BaseRepresentation
bin110100101010…
…011000001100
3221222100222211
4310222120030
512013230233
61211520204
7225225004
oct64523014
927870884
1013805068
117879a52
124759064
132b247a4
141b95004
15132a5cd
hexd2a60c

13805068 has 12 divisors (see below), whose sum is σ = 24381280. Its totient is φ = 6838992.

The previous prime is 13805059. The next prime is 13805087. The reversal of 13805068 is 86050831.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15396 + ... + 16267.

Almost surely, 213805068 is an apocalyptic number.

It is an amenable number.

13805068 is a deficient number, since it is larger than the sum of its proper divisors (10576212).

13805068 is a wasteful number, since it uses less digits than its factorization.

13805068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31776 (or 31774 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 13805068 is about 3715.5171914553. The cubic root of 13805068 is about 239.8903897624.

Adding to 13805068 its reverse (86050831), we get a palindrome (99855899).

The spelling of 13805068 in words is "thirteen million, eight hundred five thousand, sixty-eight".

Divisors: 1 2 4 109 218 436 31663 63326 126652 3451267 6902534 13805068